Home / 28,219.44-42,319.35-11,574.75

Finding the Fourth Proportional to 28,219.44, 42,319.35 and 11,574.75

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Solution

The fourth proportional to 28,219.44, 42,319.35 and 11,574.75 is: 17,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.44 : 42,319.35 = 11,574.75 : x
  2. Step 2: Convert to fraction form
    28,219.44/42,319.35 = 11,574.75/x
  3. Step 3: Cross multiply
    28,219.44x = 42,319.35 × 11,574.75
  4. Step 4: Simplify right side
    28,219.44x = 489,835,896.41
  5. Step 5: Solve for x
    x = 489,835,896.41/28,219.44
  6. Step 6: Final answer
    x = 17,358.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.